COMPUTER MAINTENANCE 1.

Check your Free Disk space NOW.

After a period of time, your system appears to have slowed down.
Clearing unwanted temp files/cache etc will restore free space.
one of the popular applications is Ccleaner from FileHippo.com - Download Free Software
( visit this site for many more updates / old versions etc )
Run this application at least once a week.
Even beginners can use this application effectively.
2. The options are
Cleaner ;
.The cleaner deletes all temporary files etc and you can
uncheck any box. Specially the DNS cache.
Registry
Deletes invalid entries. you can ,make a back up also.

Tools three options are available.
Uninstall- similar to "add remove " of Windows
Startup : List the start up applications .
( NO need to use msconfig)
You can enable Disable any time.
System Restore
The best part of the application.
you can delete all or any of the Restore Points to reclaim disk space.No risk as latest Restore point is retained.
Many Users have missed this facility.
Options.
How you want the application to work.

Remarks : I use this application regularly .

Part Two :
Another useful application is DiskSweeper Free
You will be surprised at the amount of
junk files in your system.
Option to retain any file/folder available.
Download here. ..
DiskSweeper Free - Free software downloads and software reviews - CNET Download.com
\Select Filters : only Junk files /
media files /Graphic files. ( if you want to delete some)
Uncheck file types you would like to retain.
Note the Disk space wasted.
Do not rush to delete the files. Check all applications
working normal.
( after a day or two clean the Recycle BIN.
Now check Free disk space.!